Peach. 



327 



PEACH. 



FUNGOUS DISEASES. 



Black Spot (Cladosporium carpophilum, Thm.). Description. 

 This surface fungus is generally more severe upon late varie- 

 ties, HilPs Chili being especially susceptible to its attack. It 

 forms small dusky-brown or black spots upon the side of the 

 fruit (Fig. 63), and although the spots scarcely exceed one- 



FIG. 63. Black spot of peach. 



eighth of an inch in diameter, when several run together, large 

 areas of the peach may be affected (Figs. 64, 65). In such 

 cases, all growth of the diseased portion is stopped, and fre- 

 quently the flesh cracks down to the pit. As a rule, the disease 

 is not very troublesome. 



Treatment. Spray the trees with the Bordeaux mixture, be- 

 ginning the treatments early in July. The mixture should not 

 be made stronger than oiie pound copper sulphate to ten gallons 

 of the liquid, and an abundance of lime should be added, other- 



